公开(公告)号：US20250056559A1

公开(公告)日：2025-02-13

申请号：US18687101

申请日：2022-08-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Andreas NILSSON ,  Siva MURUGANATHAN ,  Shiwei GAO

IPC: H04W72/232 ,  H04L5/00

Abstract: A network node configured to communicate with a wireless device (WD) is described. An indication indicating to the WD to perform one of a single-TRP operation and a multi-TRP operation for one or more physical channels is determined. The determined indication includes at least one of a first dedicated bit field in a downlink related downlink control information (DCI) scheduling a downlink physical channel; a second dedicated bit field in an uplink related DCI scheduling an uplink physical channel; a first transmission configuration indicator (TCI) bit field in the downlink related DCI, at least one codepoint of the first TCI bit field indicating a single third unified TCI state; a second TCI bit field in the uplink related DCI, at least one other codepoint of the second TCI bit field indicating a single fourth unified TCI state. The determined indication is transmitted to the WD.

公开(公告)号：US20240372589A1

公开(公告)日：2024-11-07

申请号：US18554086

申请日：2022-03-31

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Andreas NILSSON ,  Helka-Liina MÄÄTTÄNEN ,  Shiwei GAO ,  Siva MURUGANATHAN

IPC: H04B7/06 ,  H04L5/00

Abstract: A method, network node and wireless device (WD) for dynamic non-coherent joint transmission channel state information (CSI) indication are disclosed. According to one aspect, a method in a network node includes transmitting a first indication of a set of channel measurement resources (CMRs) for CSI. The CSI includes at least one of: a first CSI for multiple transmission and reception point (multi-TRP) physical downlink shared channel (PDSCH) transmission, and at least one second CSI for PDSCH transmission from one TRP. The method includes transmitting a second indication of a first subset of the set of CMRs to use for determining the first CSI. The method includes configuring the WD to use a second subset of the set of CMRs for determining the at least one second CSI, and receiving a CSI report comprising at least one of the first CSI and the at least one second CSI.

公开(公告)号：US20240233453A1

公开(公告)日：2024-07-11

申请号：US18366094

申请日：2023-08-07

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Andreas NILSSON ,  Jonas FRIDÉN ,  Fredrik HARRYSSON ,  Lars MANHOLM

IPC: G07C5/00 ,  B64C39/02 ,  B64F5/60 ,  G07C5/08 ,  G08B25/10

CPC classification number: G07C5/008 ,  B64C39/024 ,  B64F5/60 ,  G07C5/0816 ,  G08B25/10 ,  B64U2201/104 ,  B64U2201/20

Abstract: A method performed in a network node is provided for alerting about failure of an unmanned aerial vehicle. The method comprises receiving a failure report from an unmanned aerial vehicle, obtaining an estimated crash point for the unmanned aerial vehicle, and sending, based on the obtained estimated crash point, warning signals to communication devices residing within a defined area. Methods in an unmanned aerial vehicle and in a network entity, and a network node, unmanned aerial vehicle, network entity, computer programs and computer program products are also provided.

公开(公告)号：US20230164586A1

公开(公告)日：2023-05-25

申请号：US18094521

申请日：2023-01-09

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Andreas NILSSON ,  Niklas JALDÉN

IPC: H04W16/28 ,  H04B7/06 ,  H04W72/044

CPC classification number: H04W16/28 ,  H04B7/0634 ,  H04W72/046

Abstract: There is provided mechanisms for determining beam settings for beam management. A method is performed by a first radio transceiver device. The method comprises obtaining information about expected distribution of second radio transceiver devices in a network coverage region of the first radio transceiver device in which the beam management is to be performed. The method comprises determining beam settings for a first set of beams and a second set of beams. The first set of beams and the second set of beams are to be used for the beam management. There are fewer beams in the first set of beams than in the second set of beams. The beams in the first set of beams collectively cover all beams in the second set of beams. The beam settings for the beams in the first set of beams are determined according to the obtained information.

公开(公告)号：US20220149921A1

公开(公告)日：2022-05-12

申请号：US17434449

申请日：2019-02-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Andreas NILSSON ,  Sven PETERSSON ,  Niklas JALDÉN ,  Martin JOHANSSON

IPC: H04B7/06 ,  H04B7/0452 ,  H04L27/26 ,  H04B7/0426

Abstract: There is provided mechanisms for beam selection. A method is performed by a network node. The method comprises performing a beam management procedure for at least two terminal devices. During the beam management procedure reference signals are transmitted in a beam sweep as performed in a set of beams. During the beam management procedure, each of the at least two terminal devices reports at least two beams in the set of beams for which the reference signals have been received with highest power. The method comprises selecting which beams to serve the at least two terminal devices based jointly on the reports and a mutual interference criterion for the at least two terminal devices.

公开(公告)号：US20210281305A1

公开(公告)日：2021-09-09

申请号：US17329970

申请日：2021-05-25

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Stephen GRANT ,  Mattias FRENNE ,  Eleftherios KARIPIDIS ,  Andreas NILSSON

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10 ,  H04W72/04 ,  H04W72/12

Abstract: In a multi-BPL scenario, some form of beam-related indication is desirable to provide assistance to the UE in setting its Rx spatial filtering configuration to receive PDSCH. The assistance to the UE is in the form of a certain indicator indicating a spatial QCL assumption between PDSCH DMRS antenna port(s) and DL RS (e.g., CSI-RS) antenna port(s), such as a preferred CSI-RS resource that was measured and reported previously.

公开(公告)号：US20210119347A1

公开(公告)日：2021-04-22

申请号：US17006288

申请日：2020-08-28

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Sven PETERSSON ,  Andreas NILSSON

IPC: H01Q21/24 ,  H01Q3/24 ,  H03F3/189 ,  H01Q21/28 ,  H01Q1/24 ,  H01Q3/26

Abstract: There is provided an antenna arrangement for a radio transceiver device. The antenna arrangement comprises at least two antenna arrays, wherein at least one of the at least two antenna arrays has antenna elements of two polarizations. The antenna elements of one polarization at each of the at least two antenna arrays define a respective set of antenna elements. The antenna arrangement comprises at least two baseband chains. The antenna arrangement comprises a switching network configured to selectively operatively connect each of the at least two baseband chains with its own set of antenna elements such that no two baseband chains are operatively connected to one and the same set of antenna elements. Each of the at least one antenna array that has antenna elements of two polarizations is operatively connected to the switching network via a respective hybrid connector configured to provide a signal from one of the baseband chains to antenna elements of both polarizations.

公开(公告)号：US20200336264A1

公开(公告)日：2020-10-22

申请号：US16652597

申请日：2018-10-01

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Sebastian FAXÉR ,  Andreas NILSSON

IPC: H04L5/00 ,  H04B7/0456 ,  H04W72/04

Abstract: A method, wireless device (100) and network node (200) for performing sounding reference signal, SRS, transmission According to one aspect a method includes receiving a definition of one or more SRS resource sets to be configured, comprising at least one SRS transmission setting. The method further includes receiving an indication of a selected SRS resource set to use for a SRS transmission, from the one or more configured SRS resource sets and determining a precoding configuration for the SRS transmission based on the selected SRS resource set and the at least one SRS transmission setting. The method also includes transmitting a SRS according to the determined precoding configuration.

公开(公告)号：US20200274605A1

公开(公告)日：2020-08-27

申请号：US16461260

申请日：2018-08-22

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Andreas NILSSON

IPC: H04B7/06

Abstract: There is provided mechanisms for beam training, the method being performed by a terminal device. A method comprises receiving, using a fixed beam b0 and from a network node, a first occurrence of a set of beam reference signals r1, r2, . . . , rk, . . . , rN. The method comprises determining a respective compensation factor c1, c2, . . . , ck, . . . , cN for at least one of the received beam reference signals r1, r2, . . . , rk, . . . , rN. The method comprises receiving, using a set of directional beams b1, b2, . . . , bk, . . . , bN and from the network node, a second occurrence of the set of beam reference signals r1, r2, . . . , rk, . . . , rN such that beam reference signal rk is received in directional beam bk, for k=1, . . . , N. The method comprises evaluating which directional beam in the set of directional beams b1, b2, . . . , bk, . . . , bN to use for subsequent communication with the network node based on strongest received beam reference signal in the second occurrence of the set of beam reference signals r1, r2, . . . , rk, . . . , rN as compensated for using the compensation factors ck, for k=1, . . . , N, wherein signal strength for directional beam bk is compensated for using compensation factor ck, for k=1, . . . , N.

公开(公告)号：US20200228191A1

公开(公告)日：2020-07-16

申请号：US16833960

申请日：2020-03-30

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Sven PETERSSON ,  Fredrik ATHLEY ,  Andreas NILSSON

IPC: H04B7/08 ,  H04L5/00 ,  H04W72/04

Abstract: A method is performed for beam training of a radio transceiver device comprising at least two antenna arrays. During the beam training, a first set of occurrences of a reference signal is received using all the antenna arrays and such that one respective occurrence of the reference signal is received in one single wide beam at each of all the antenna arrays. During the beam training, a second set of occurrences of the reference signal using less than all antenna arrays and such that one respective occurrence of the reference signal is received in each respective narrow at each of the less than all antenna arrays. Which of the less than all antenna arrays to receive the second set of occurrences of the reference signal is determined based on evaluation of reception of the first set of occurrences of the reference signal at each of all the antenna arrays.